MX-5 — Stage 2 ECU Tune
- Increased power output to 179 kW
- Turbocharger boost pressure management at 14 psi
- High-flow turbocharger efficiency
- Custom engine control calibration
This NA/NB MX-5 runs a full Vipec V44 standalone system to support an Evo X high-flow turbo on the factory BP 1.8L block. The setup is aimed at reliable circuit use—modest boost at 0.96 bar, proper engine management to handle timing and fuel under forced induction, and enough headroom to keep things together lap after lap.
Workshop dyno showed 179 kW at the wheels, up from the baseline 143 kW, with torque climbing from 271 to 291 Nm. The V44 platform gives full control over ignition, fuel, and boost mapping, which is essential when you're bolting a turbo to an engine that left the factory naturally aspirated. Custom exhaust manifold feeds the Evo X unit, and the calibration keeps things safe for off-road competition use.
This is the sort of Stage 2 build that makes sense for someone chasing reliable power without chasing numbers—just a well-sorted turbo conversion with the right management behind it.
Why use a standalone ECU like the Vipec V44 for a turbo BP conversion?
The factory ECU isn't designed for forced induction. A standalone like the V44 gives full control over fuel, ignition, and boost tables, which is non-negotiable when adding a turbo to a naturally aspirated engine.
Is 0.96 bar conservative for this setup?
Yes. On a factory BP block with a high-flow turbo, staying under 1 bar keeps thermal load and cylinder pressure sensible for circuit work. It's about longevity, not chasing peak numbers.
What's the advantage of the Evo X turbo on this application?
The Evo X unit flows well in the mid-range without needing excessive boost. It suits the BP's displacement and keeps response sharp, which matters on a light chassis like the MX-5.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Vipec V44.
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